Chapter 13

Pooled StDev = 1.982 12.0 15.0 18.0 21.0 Because the p-value( = .05, we can reject the null hypothesis that the mean download time is the same for Web sites located in the three countries. Note that the mean download time for Web sites located in the United Kingdom (12.052 seconds) is less than the mean download time for Web sites in the United ... ................
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